Who we are
Established in 2000, DecisionOne is a BI design consultancy set up by Lawrence Corr. We believe that collaborative data design known as modelstorming dramatically improves how organisations understand their data and gain valuable insight from it.

What we do
We help organisations create better BI solutions. We do that through remote modelstorming workshops and public training courses worldwide.

Agile Data Warehouse Design eBook Available


When and Where
Our next US Timezone Agile Data Warehouse Design course will be live online 22-24 September 2020. Our first UK/EU online course will be 13-15 October 2020. View our full 2020/21 training schedule for further dates and timezones/locations.


Why work with us

See who our clients are and what they say about us.

How can we help you

Book on one of our public courses or contact us to organise private team training, design reviews or a modelstorming workshop.